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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
429 lines
13 KiB
Diff
429 lines
13 KiB
Diff
From 8d64f178c3568d212f3ddf05ea1ad7f103beeb86 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 23 Jan 2019 18:37:29 +0000
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Subject: [PATCH] char: vc_mem: Fix all coding style issues.
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Cleans up all checkpatch errors in vc_mem.c and vc_mem.h
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No functional change to the code.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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---
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drivers/char/broadcom/vc_mem.c | 177 +++++++++++---------------------
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include/linux/broadcom/vc_mem.h | 38 +++----
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2 files changed, 77 insertions(+), 138 deletions(-)
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--- a/drivers/char/broadcom/vc_mem.c
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+++ b/drivers/char/broadcom/vc_mem.c
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@@ -1,16 +1,16 @@
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-/*****************************************************************************
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-* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved.
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-*
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-* Unless you and Broadcom execute a separate written software license
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-* agreement governing use of this software, this software is licensed to you
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-* under the terms of the GNU General Public License version 2, available at
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-* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
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-*
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-* Notwithstanding the above, under no circumstances may you combine this
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-* software in any way with any other Broadcom software provided under a
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-* license other than the GPL, without Broadcom's express prior written
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-* consent.
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-*****************************************************************************/
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+/*
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+ * Copyright 2010 - 2011 Broadcom Corporation. All rights reserved.
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+ *
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+ * Unless you and Broadcom execute a separate written software license
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+ * agreement governing use of this software, this software is licensed to you
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+ * under the terms of the GNU General Public License version 2, available at
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+ * http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
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+ *
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+ * Notwithstanding the above, under no circumstances may you combine this
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+ * software in any way with any other Broadcom software provided under a
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+ * license other than the GPL, without Broadcom's express prior written
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+ * consent.
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+ */
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#include <linux/kernel.h>
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#include <linux/module.h>
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@@ -26,11 +26,11 @@
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#define DRIVER_NAME "vc-mem"
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-// Device (/dev) related variables
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-static dev_t vc_mem_devnum = 0;
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-static struct class *vc_mem_class = NULL;
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+/* Device (/dev) related variables */
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+static dev_t vc_mem_devnum;
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+static struct class *vc_mem_class;
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static struct cdev vc_mem_cdev;
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-static int vc_mem_inited = 0;
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+static int vc_mem_inited;
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#ifdef CONFIG_DEBUG_FS
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static struct dentry *vc_mem_debugfs_entry;
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@@ -50,96 +50,55 @@ static struct dentry *vc_mem_debugfs_ent
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* bootloader (and/or kernel). When that happens, the values of these variables
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* would be calculated and assigned in the init function.
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*/
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-// in the 2835 VC in mapped above ARM, but ARM has full access to VC space
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-unsigned long mm_vc_mem_phys_addr = 0x00000000;
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-unsigned int mm_vc_mem_size = 0;
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-unsigned int mm_vc_mem_base = 0;
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-
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+/* In the 2835 VC in mapped above ARM, but ARM has full access to VC space */
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+unsigned long mm_vc_mem_phys_addr;
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EXPORT_SYMBOL(mm_vc_mem_phys_addr);
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+unsigned int mm_vc_mem_size;
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EXPORT_SYMBOL(mm_vc_mem_size);
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+unsigned int mm_vc_mem_base;
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EXPORT_SYMBOL(mm_vc_mem_base);
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-static uint phys_addr = 0;
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-static uint mem_size = 0;
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-static uint mem_base = 0;
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-
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-
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-/****************************************************************************
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-*
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-* vc_mem_open
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-*
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-***************************************************************************/
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+static uint phys_addr;
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+static uint mem_size;
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+static uint mem_base;
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static int
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vc_mem_open(struct inode *inode, struct file *file)
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{
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- (void) inode;
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- (void) file;
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+ (void)inode;
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pr_debug("%s: called file = 0x%p\n", __func__, file);
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return 0;
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}
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-/****************************************************************************
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-*
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-* vc_mem_release
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-*
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-***************************************************************************/
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-
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static int
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vc_mem_release(struct inode *inode, struct file *file)
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{
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- (void) inode;
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- (void) file;
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+ (void)inode;
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pr_debug("%s: called file = 0x%p\n", __func__, file);
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return 0;
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}
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-/****************************************************************************
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-*
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-* vc_mem_get_size
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-*
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-***************************************************************************/
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-
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static void
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vc_mem_get_size(void)
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{
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}
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-/****************************************************************************
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-*
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-* vc_mem_get_base
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-*
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-***************************************************************************/
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-
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static void
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vc_mem_get_base(void)
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{
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}
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-/****************************************************************************
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-*
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-* vc_mem_get_current_size
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-*
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-***************************************************************************/
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-
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int
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vc_mem_get_current_size(void)
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{
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return mm_vc_mem_size;
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}
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-
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EXPORT_SYMBOL_GPL(vc_mem_get_current_size);
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-/****************************************************************************
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-*
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-* vc_mem_ioctl
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-*
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-***************************************************************************/
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-
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static long
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vc_mem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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{
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@@ -154,52 +113,52 @@ vc_mem_ioctl(struct file *file, unsigned
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case VC_MEM_IOC_MEM_PHYS_ADDR:
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{
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pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR=0x%p\n",
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- __func__, (void *) mm_vc_mem_phys_addr);
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+ __func__, (void *)mm_vc_mem_phys_addr);
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- if (copy_to_user((void *) arg, &mm_vc_mem_phys_addr,
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- sizeof (mm_vc_mem_phys_addr)) != 0) {
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+ if (copy_to_user((void *)arg, &mm_vc_mem_phys_addr,
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+ sizeof(mm_vc_mem_phys_addr))) {
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rc = -EFAULT;
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}
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break;
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}
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case VC_MEM_IOC_MEM_SIZE:
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{
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- // Get the videocore memory size first
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+ /* Get the videocore memory size first */
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vc_mem_get_size();
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pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%x\n", __func__,
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- mm_vc_mem_size);
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+ mm_vc_mem_size);
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- if (copy_to_user((void *) arg, &mm_vc_mem_size,
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- sizeof (mm_vc_mem_size)) != 0) {
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+ if (copy_to_user((void *)arg, &mm_vc_mem_size,
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+ sizeof(mm_vc_mem_size))) {
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rc = -EFAULT;
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}
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break;
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}
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case VC_MEM_IOC_MEM_BASE:
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{
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- // Get the videocore memory base
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+ /* Get the videocore memory base */
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vc_mem_get_base();
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pr_debug("%s: VC_MEM_IOC_MEM_BASE=%x\n", __func__,
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- mm_vc_mem_base);
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+ mm_vc_mem_base);
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- if (copy_to_user((void *) arg, &mm_vc_mem_base,
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- sizeof (mm_vc_mem_base)) != 0) {
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+ if (copy_to_user((void *)arg, &mm_vc_mem_base,
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+ sizeof(mm_vc_mem_base))) {
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rc = -EFAULT;
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}
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break;
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}
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case VC_MEM_IOC_MEM_LOAD:
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{
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- // Get the videocore memory base
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+ /* Get the videocore memory base */
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vc_mem_get_base();
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pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%x\n", __func__,
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mm_vc_mem_base);
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- if (copy_to_user((void *) arg, &mm_vc_mem_base,
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- sizeof (mm_vc_mem_base)) != 0) {
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+ if (copy_to_user((void *)arg, &mm_vc_mem_base,
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+ sizeof(mm_vc_mem_base))) {
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rc = -EFAULT;
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}
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break;
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@@ -243,12 +202,6 @@ vc_mem_compat_ioctl(struct file *file, u
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}
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#endif
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-/****************************************************************************
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-*
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-* vc_mem_mmap
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-*
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-***************************************************************************/
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-
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static int
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vc_mem_mmap(struct file *filp, struct vm_area_struct *vma)
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{
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@@ -257,32 +210,26 @@ vc_mem_mmap(struct file *filp, struct vm
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unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
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pr_debug("%s: vm_start = 0x%08lx vm_end = 0x%08lx vm_pgoff = 0x%08lx\n",
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- __func__, (long) vma->vm_start, (long) vma->vm_end,
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- (long) vma->vm_pgoff);
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+ __func__, (long)vma->vm_start, (long)vma->vm_end,
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+ (long)vma->vm_pgoff);
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if (offset + length > mm_vc_mem_size) {
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pr_err("%s: length %ld is too big\n", __func__, length);
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return -EINVAL;
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}
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- // Do not cache the memory map
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+ /* Do not cache the memory map */
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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rc = remap_pfn_range(vma, vma->vm_start,
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(mm_vc_mem_phys_addr >> PAGE_SHIFT) +
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vma->vm_pgoff, length, vma->vm_page_prot);
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- if (rc != 0) {
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+ if (rc)
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pr_err("%s: remap_pfn_range failed (rc=%d)\n", __func__, rc);
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- }
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return rc;
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}
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-/****************************************************************************
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-*
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-* File Operations for the driver.
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-*
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-***************************************************************************/
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-
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+/* File Operations for the driver. */
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static const struct file_operations vc_mem_fops = {
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.owner = THIS_MODULE,
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.open = vc_mem_open,
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@@ -316,7 +263,7 @@ static int vc_mem_debugfs_init(
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vc_mem_debugfs_entry,
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(u32 *)&mm_vc_mem_phys_addr)) {
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dev_warn(dev, "%s:could not create vc_mem_phys entry\n",
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- __func__);
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+ __func__);
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goto fail;
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}
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@@ -325,7 +272,7 @@ static int vc_mem_debugfs_init(
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vc_mem_debugfs_entry,
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(u32 *)&mm_vc_mem_size)) {
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dev_warn(dev, "%s:could not create vc_mem_size entry\n",
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- __func__);
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+ __func__);
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goto fail;
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}
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@@ -347,12 +294,7 @@ fail:
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#endif /* CONFIG_DEBUG_FS */
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-
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-/****************************************************************************
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-*
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-* vc_mem_init
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-*
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-***************************************************************************/
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+/* Module load/unload functions */
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static int __init
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vc_mem_init(void)
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@@ -369,16 +311,19 @@ vc_mem_init(void)
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vc_mem_get_size();
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pr_info("vc-mem: phys_addr:0x%08lx mem_base=0x%08x mem_size:0x%08x(%u MiB)\n",
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- mm_vc_mem_phys_addr, mm_vc_mem_base, mm_vc_mem_size, mm_vc_mem_size / (1024 * 1024));
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+ mm_vc_mem_phys_addr, mm_vc_mem_base, mm_vc_mem_size,
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+ mm_vc_mem_size / (1024 * 1024));
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- if ((rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME)) < 0) {
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+ rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME);
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+ if (rc < 0) {
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pr_err("%s: alloc_chrdev_region failed (rc=%d)\n",
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__func__, rc);
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goto out_err;
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}
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cdev_init(&vc_mem_cdev, &vc_mem_fops);
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- if ((rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1)) != 0) {
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+ rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1);
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+ if (rc) {
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pr_err("%s: cdev_add failed (rc=%d)\n", __func__, rc);
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goto out_unregister;
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}
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@@ -408,26 +353,20 @@ vc_mem_init(void)
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device_destroy(vc_mem_class, vc_mem_devnum);
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- out_class_destroy:
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+out_class_destroy:
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class_destroy(vc_mem_class);
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vc_mem_class = NULL;
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- out_cdev_del:
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+out_cdev_del:
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cdev_del(&vc_mem_cdev);
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- out_unregister:
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+out_unregister:
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unregister_chrdev_region(vc_mem_devnum, 1);
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- out_err:
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+out_err:
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return -1;
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}
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-/****************************************************************************
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-*
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-* vc_mem_exit
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-*
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-***************************************************************************/
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-
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static void __exit
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vc_mem_exit(void)
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{
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--- a/include/linux/broadcom/vc_mem.h
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+++ b/include/linux/broadcom/vc_mem.h
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@@ -1,16 +1,16 @@
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-/*****************************************************************************
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-* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved.
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-*
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-* Unless you and Broadcom execute a separate written software license
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-* agreement governing use of this software, this software is licensed to you
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-* under the terms of the GNU General Public License version 2, available at
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-* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
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-*
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-* Notwithstanding the above, under no circumstances may you combine this
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-* software in any way with any other Broadcom software provided under a
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-* license other than the GPL, without Broadcom's express prior written
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-* consent.
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-*****************************************************************************/
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+/*
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+ * Copyright 2010 - 2011 Broadcom Corporation. All rights reserved.
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+ *
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+ * Unless you and Broadcom execute a separate written software license
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+ * agreement governing use of this software, this software is licensed to you
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+ * under the terms of the GNU General Public License version 2, available at
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+ * http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
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+ *
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+ * Notwithstanding the above, under no circumstances may you combine this
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+ * software in any way with any other Broadcom software provided under a
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+ * license other than the GPL, without Broadcom's express prior written
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+ * consent.
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+ */
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#ifndef _VC_MEM_H
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#define _VC_MEM_H
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@@ -19,17 +19,17 @@
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#define VC_MEM_IOC_MAGIC 'v'
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-#define VC_MEM_IOC_MEM_PHYS_ADDR _IOR( VC_MEM_IOC_MAGIC, 0, unsigned long )
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-#define VC_MEM_IOC_MEM_SIZE _IOR( VC_MEM_IOC_MAGIC, 1, unsigned int )
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-#define VC_MEM_IOC_MEM_BASE _IOR( VC_MEM_IOC_MAGIC, 2, unsigned int )
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-#define VC_MEM_IOC_MEM_LOAD _IOR( VC_MEM_IOC_MAGIC, 3, unsigned int )
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+#define VC_MEM_IOC_MEM_PHYS_ADDR _IOR(VC_MEM_IOC_MAGIC, 0, unsigned long)
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+#define VC_MEM_IOC_MEM_SIZE _IOR(VC_MEM_IOC_MAGIC, 1, unsigned int)
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+#define VC_MEM_IOC_MEM_BASE _IOR(VC_MEM_IOC_MAGIC, 2, unsigned int)
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+#define VC_MEM_IOC_MEM_LOAD _IOR(VC_MEM_IOC_MAGIC, 3, unsigned int)
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-#if defined( __KERNEL__ )
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+#ifdef __KERNEL__
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#define VC_MEM_TO_ARM_ADDR_MASK 0x3FFFFFFF
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extern unsigned long mm_vc_mem_phys_addr;
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extern unsigned int mm_vc_mem_size;
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-extern int vc_mem_get_current_size( void );
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+extern int vc_mem_get_current_size(void);
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#endif
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#ifdef CONFIG_COMPAT
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